COURIERESMTPD(8)
NAME
courieresmtpd - Courier mail server ESMTP daemon
DESCRIPTION
The actual Courier ESMTP daemon (mail transfer agent) is called courieresmtpd. Normally, courieresmtpd is run from couriertcpd, which is in
turn run from esmtpd start or a similar command. You should not have
to run courieresmtpd manually.